CalDigit [Intel Certified] Thunderbolt 4 Cable - 40Gbps 100W Charging, Compatible with Thunderbolt 3 & USB-C, 2016+ MacBook Pro, Air, 2020+ M1 (0.8 Meter 2.62 Feet, Thunderbolt 4 / USB 4 Cable)

Bomber construction, data speeds that meet spec, and faultless video signal driving my Dell U3219Q 4K 31 display form my 2018 Macbook Pro. You can pay less, as I have, but those cables dont provide the spec for high-end applications. I trust this brand and use it through a CalDigit TS3 Plus hub. Flawless.

Given what a mess USB-C is (i.e. one connector but lots and lots of cable nuances), I appreciate that CalDigit marks the cable connectors with a 3 and a Thunderbolt to signal that the cable is in fact a Thunderbolt-3 capable cable. Since its active, it can transfer 40GBps. Passive cables longer than 0.5m will be limited to 20GBps. While those numbers sound immense, keep in mind that a 4K display at 60Hz will consume ~13GBps.

This TB4 cable allows me to switch back and forth between two Macs using the same TS3+ dock by simply unplugging the cable from one Macs TB Port and plugging it into the TB Port on the other one. Sounds simple, but it was never that simple with the old long active Thunderbolt 3 cable. With the old TB3 long active cable, there was a laborious process of Mac detection and dock reboot required to switch between the two Macs using the same dock.

This cable is certified at up to 40Gbs. I was running some disk speed tests to compare this cable to some NIMASO USB4 cables which have a theoretical capability to support 40Gbs, but arent certified to run that fast.

sturdy material well-made and it really works!

Quality Cable, no issues.

I had been using a much shorter 18-inch , manufacturer-provided Thunderbolt3 cable to connect an iMac 27-inch to an external Thunder3 QuadX bay with 4 drives in it. Using the 2-meter cable from CalDigit, plugged in for the first time today, BlackMagic Speed Test shows the drives (spinning SATA drives) functioning at the same speeds as they did with the shorter cable. Im not super techie but this gives me some assurance the longer cable is not getting in the way of performance, and now I can move the enclosure to a more convenient location farther away from the iMac. Also I tested both ends of the cable in both the iMac and in the Thunder3 QuadX ports and it engages well, clicking into place. Some reviews of other cables talk about touchy connections with Thunderbolt3 cables. My only complaint about this cable (along with others on the market right now) is paying this much for a cable of this length. I will update the review if I encounter any problems with it in the future.

Terrible for external hard drives. Limited Samsung T5 to 40 MB/s which is rated for over 400 MB/s. Cannot recommend this cable.

Video from my Macbook Pro 2016 did not display on my LG 27MU88-W monitor. Product does not work.

When it comes to reliable brands, you can trust Cal Digit. They make the TS4 dock for MacBooks which are top of-the line. Their cables are the same. Only wish they would have a braided version.